From: Eric Schulte <schulte.eric@gmail.com>
To: Sebastien Vauban <wxhgmqzgwmuf@spammotel.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: org babel support for tcl and awk
Date: Tue, 24 May 2011 17:51:01 -0600 [thread overview]
Message-ID: <87lixvd5ei.fsf@gmail.com> (raw)
In-Reply-To: <80boyr50w4.fsf@somewhere.org> (Sebastien Vauban's message of "Tue, 24 May 2011 21:55:39 +0200")
"Sebastien Vauban" <wxhgmqzgwmuf@spammotel.com> writes:
> Hi Eric(s),
>
> Eric Schulte wrote:
>> Eric S Fraga <e.fraga@ucl.ac.uk> writes:
>>> this is great to see as I use awk quite often. What is involved in
>>> extending this to be able to run an awk script on input from within the org
>>> file (output of another babel block, for instance, as my typical use of awk
>>> is to re-arrange output from another program...)? Or, if you wish, can you
>>> suggest one of the ob-XXX modules that best illustrates how to do this and
>>> I can give it a try?
>>
>> I've made a quick change so that any variable named "stdin" is treated
>> specially, in that, rather than using its value to replace strings of $stdin
>> in the text of the awk code, the value of the stdin variable is saved into
>> the file processed by awk. This allows awk to operate over Org-mode
>> references.
>>
>> If babel code block supported a pipe or an actual stdin header argument,
>> that would be the ideal way to add this behavior, but currently nothing of
>> that nature exists.
>>
>> Please let me know if this misses part of your suggestion, or more generally
>> what else may be advisable before we add this to the core.
>
> Could this be implemented for sh as well?
>
> AFAI understand, this is exactly the missing piece for me to be able to:
>
Hi Seb,
Unfortunately this simple hack for ob-awk does not address the need you
link to below -- which I am aware of and which is on my list of larger
longer-term Babel development items. I think that a future piping
implementation will be the ultimate solution to the issues you address.
Such an implementation -- allowing data to flow between concurrently
executing blocks utilizing posix pipes -- will require more
sophisticated processes interaction and possibly some form of
multi-threaded elisp execution.
Best -- Eric
>
> - run consecutive partial blocks of code in my Org buffer (seeing what
> they really do on input data),
>
> - export the full list of block as a script.
>
> This was described in
> http://www.mail-archive.com/emacs-orgmode@gnu.org/msg36976.html, and still
> impossible -- for me! -- to do right now. But I'm not very sure I wrote my
> thoughts in an enough understandable way -- maybe not clear enough to me?
>
> Best regards,
> Seb
--
Eric Schulte
http://cs.unm.edu/~eschulte/
next prev parent reply other threads:[~2011-05-24 23:51 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-24 9:31 org babel support for tcl and awk orgmode
2011-05-24 12:51 ` Eric Schulte
2011-05-24 17:53 ` Eric S Fraga
2011-05-24 19:03 ` Eric Schulte
2011-05-24 19:55 ` Sebastien Vauban
2011-05-24 23:51 ` Eric Schulte [this message]
2011-05-25 12:30 ` Sebastien Vauban
2011-05-25 15:57 ` Eric Schulte
2011-05-26 11:18 ` Sebastien Vauban
2011-05-26 13:37 ` Eric Schulte
2011-05-26 13:03 ` Eric Schulte
2011-05-26 15:15 ` Eric S Fraga
2011-05-24 18:57 ` orgmode
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